My issue is pretty much described in the above thread. MC_Will (plugin author) of WP Mandrill hasn't been able to help much.
What he's describing doesn't seem too hard, but I'm not much of a developer myself though. Would someone be able to help me out with this? I don't have budget for custom coding or using WPMU Jobs at the moment and especially not for something as trivial as this. Any help is really appreciated.
UPDATE: If I get a true solution out of this and it's all working for me, I'll provide some rep. points to the individual who helps me out!